3 years ago

How do you multiply polynomials

Mathematics

1 answer:

dexar [7]3 years ago

6 0

By using the F.O.I.L. method

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The circumference of a circle varies directly as the diameter of a circle. When the diameter of a circle is 5, the circumference

Naya [18.7K]

Answer:

20.3 units

Step-by-step explanation:

Write and solve an equation involving ratios:

5 units 15.7 units

------------- = ----------------

9 units C

Cross-multiplying, we get 5C = 9(15.7), with C measured in "units."

Then 5C = 141.3, so that C = 141.3 units / 5 = 20.3 units.

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3 years ago

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#1,2,2,3,5,6,7 I need work shown also please help

laiz [17]

I’m not sure about the estimates but the overall answers should be correct

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3 years ago

I have to estimate 9,105-4031 and im soo confused! Help me plss

balandron [24]

9105-4031= 5074

Step-by-step explanation:

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4 years ago

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Help question attached multiple choice

Rina8888 [55]

ANSWER

$x = \frac{\pi}{2} , \frac{7\pi}{6} , \frac{3\pi}{2} , \frac{11\pi}{6}$

EXPLANATION

The given trigonometric equation is

$\cos(x) + 2 \cos(x) \sin(x) = 0$

We factor cos(x) to get:

$\cos(x) (1 + 2 \sin(x) ) = 0$

Apply the zero product property to obtain:

$\cos(x) = 0 \: or \: 1 + 2 \sin(x) = 0$

$\cos(x) = 0 \: or \: \sin(x) = - \frac{1}{2}$

Using the unit circle,

$\cos(x) = 0$

when

$x = \frac{\pi}{2}$

and

$x = \frac{3\pi}{2}$

We know

$\sin(y) = \frac{1}{2}$

when

$y= \frac{\pi}{6}$

The sine function is negative in the third and fourth quadrants.

$x = \pi + \frac{\pi}{6} = \frac{7\pi}{6}$

$x = 2\pi - \frac{\pi}{6} = \frac{11\pi}{6}$

Hence the solutions are:

$x = \frac{\pi}{2} , \frac{7\pi}{6} , \frac{3\pi}{2} , \frac{11\pi}{6}$

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3 years ago

Sorry for the computer quality lol but can someone please help ?

xenn [34]

Answer:

a=(-1,0) b=(0,3) c=(-2,2)

Step-by-step explanation:

7 0

4 years ago